Safety trip to protect the compressor of airconditioners water coolers deep freezers etc saves the compressor from problems such as starting capacitor failure running capacitor failure relay failure gas leekage compressor pumping failure blower failure condensor clogging leakage of valve reeds etc they minimise repair and maintenance costs they are ic besed devices they help maintain the reliability of the set parameters essential for long life and improved performance thes are availablein the capacities of it 1.5t 2t 3t r 5t r and 7.5t r